Alkali-resistant rubber tape with textile backing/edges. For use with cementitious waterproofing systems and liquid membranes. For the flexible waterproofing of angles / junctions expansion joints to be treated with MAPELASTIC, MAPELASTIC SMART, MONOLASTIC ULTRA, MAPELASTIC AQUADEFENSE or MAPEGUM WPS - Waterproofing corners between adjacent walls and between walls and floors before treating with Mapelastic, Mapelastic Smart, Mapelasic Turbo or Mapelastic AquaDefense. - Flexible waterproofing of expansion joints on terraces and balconies, etc. before treating with Mapelastic, Mapelastic Smart, Mapelasic Turbo or Mapelastic AquaDefense. - Sealing pipes and drains in bathrooms, showers and kitchens in conjunction with Mapeband gaskets. - Sealing expansion joints in precast panels.